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[14489] | 1 | package DBM_Filter::encode ;
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| 2 |
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| 3 | use strict;
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| 4 | use warnings;
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| 5 | use Carp;
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| 6 |
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| 7 | our $VERSION = '0.01';
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| 8 |
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| 9 | BEGIN
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| 10 | {
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| 11 | eval { require Encode; };
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| 12 |
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| 13 | croak "Encode module not found.\n"
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| 14 | if $@;
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| 15 | }
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| 16 |
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| 17 |
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| 18 | sub Filter
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| 19 | {
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| 20 | my $encoding_name = shift || "utf8";
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| 21 |
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| 22 | my $encoding = Encode::find_encoding($encoding_name) ;
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| 23 |
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| 24 | croak "Encoding '$encoding_name' is not available"
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| 25 | unless $encoding;
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| 26 |
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| 27 | return {
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| 28 | Store => sub {
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| 29 | $_ = $encoding->encode($_)
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| 30 | if defined $_ ;
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| 31 | },
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| 32 | Fetch => sub {
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| 33 | $_ = $encoding->decode($_)
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| 34 | if defined $_ ;
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| 35 | }
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| 36 | } ;
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| 37 | }
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| 38 |
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| 39 | 1;
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| 40 |
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| 41 | __END__
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| 42 |
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| 43 | =head1 DBM_Filter::encode
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| 44 |
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| 45 | =head1 SYNOPSIS
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| 46 |
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| 47 | use SDBM_File; # or DB_File, or GDBM_File, or NDBM_File, or ODBM_File
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| 48 | use DBM_Filter ;
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| 49 |
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| 50 | $db = tie %hash, ...
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| 51 | $db->Filter_Push('encode' => 'iso-8859-16');
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| 52 |
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| 53 | =head1 DESCRIPTION
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| 54 |
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| 55 | This DBM filter allows you to choose the character encoding will be
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| 56 | store in the DBM file. The usage is
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| 57 |
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| 58 | $db->Filter_Push('encode' => ENCODING);
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| 59 |
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| 60 | where "ENCODING" must be a valid encoding name that the Encode module
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| 61 | recognises.
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| 62 |
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| 63 | A fatal error will be thrown if:
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| 64 |
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| 65 | =over 5
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| 66 |
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| 67 | =item 1
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| 68 |
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| 69 | The Encode module is not available.
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| 70 |
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| 71 | =item 2
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| 72 |
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| 73 | The encoding requested is not supported by the Encode module.
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| 74 |
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| 75 | =back
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| 76 |
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| 77 | =head1 SEE ALSO
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| 78 |
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| 79 | L<DBM_Filter>, L<perldbmfilter>, L<Encode>
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| 80 |
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| 81 | =head1 AUTHOR
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| 82 |
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| 83 | Paul Marquess [email protected]
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| 84 |
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